51. Free-living flatworms like Planaria move by:
Answer: C. cilia on the undersides
Biology Class 11 Unit 10: Animalia MCQs
216 multiple choice questions with the correct answer for each. Tap an option to check yourself, or switch on "Show all answers". This is page 2 of 5.
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52. Asexual reproduction in flatworms is by:
Answer: B. fission
53. Most flatworms are:
Answer: B. monoecious
54. The liver fluke is:
Answer: C. Fasciola
55. Tapeworm is:
Answer: B. Taenia
56. The head of the tapeworm which attaches to the host intestine is the:
Answer: B. scolex
57. The body segments of tapeworm are called:
Answer: C. proglottids
58. Aschelminthes are commonly called:
Answer: B. roundworms (nematodes)
59. The body of roundworm is:
Answer: B. cylindrical and tapering at both ends
60. The body cavity of nematodes is a:
Answer: B. pseudocoelom
61. Most nematodes are:
Answer: B. dioecious
62. The muscular layer in nematodes is divided into:
Answer: B. four longitudinal quadrants
63. Ascaris lumbricoides is the intestinal parasite of:
Answer: B. man
64. Pinworms (Enterobius vermicularis) cause:
Answer: B. insomnia and loss of appetite
65. Mollusca means:
Answer: C. soft bodied animals
66. Molluscs are:
Answer: B. soft, unsegmented, coelomate, triploblastic and bilaterally symmetrical
67. The body of molluscs is divided into:
Answer: B. head, ventral muscular foot and dorsal visceral hump
68. The envelope that secretes the shell in molluscs is the:
Answer: C. mantle
69. The tongue-like rasping structure in molluscs is the:
Answer: D. radula
70. The larval stage of molluscs is:
Answer: B. trochophore
71. A pearl is formed by:
Answer: C. pearl oyster
72. The shell of freshwater mussels is used in:
Answer: B. button industry
73. Teredo, the shipworm, damages:
Answer: B. wooden parts of ships
74. Annelids are:
Answer: B. metamerically segmented worms with a true coelom
75. Earthworm is an example of:
Answer: C. Annelida
76. The scientific name of earthworm is:
Answer: C. Pheretima
77. Leech is:
Answer: C. Hirudo
78. The annelid circulatory system is:
Answer: B. closed
79. The coelom of annelids acts as a:
Answer: B. hydrostatic skeleton
80. Earthworm and leech are:
Answer: B. hermaphrodite
81. Nereis has:
Answer: B. separate sexes
82. Arthropoda means:
Answer: C. animals with jointed legs
83. The body of arthropods is covered by:
Answer: C. chitin
84. The coelom in arthropods is reduced and called:
Answer: B. haemocoel
85. The skeleton of arthropods is:
Answer: B. exoskeleton formed mainly of chitin
86. The sexes in arthropods are:
Answer: B. separate
87. Development in arthropods takes place through:
Answer: B. metamorphosis
88. Cyclops carries the larva of:
Answer: C. guinea worm
89. The honey bee produces:
Answer: B. honey and wax
90. Silk is produced by:
Answer: C. silkworm
91. Which insect is used in laboratories for genetic research?
Answer: B. Fruit fly (Drosophila)
92. Malaria is spread by:
Answer: B. mosquitoes
93. Echinodermata means:
Answer: B. spiny skinned animals
94. Echinoderms are exclusively:
Answer: C. marine
95. Adult echinoderms show:
Answer: B. radial symmetry
96. The locomotory organs of echinoderms are:
Answer: C. tube feet
97. The water vascular system of echinoderms is used in:
Answer: B. locomotion, attachment, gas exchange and feeding
98. The sieve-like plate connecting the water vascular system to outside is the:
Answer: B. madreporite
99. In echinoderms the mouth is on the:
Answer: B. oral side, and the anus is on the aboral side
100. Bipinnaria and brachiolaria are larvae of:
Answer: C. echinoderms (starfish)
About Biology Class 11 Unit 10 MCQs (Federal Board)
These 216 Biology MCQs cover Class 11 Unit 10: Animalia of the Federal Board (FBISE) HSSC-I (1st Year / Class 11) syllabus. They are SLO-based MCQs as per the new pattern for FBISE exams. Each question has four options and the correct answer is shown, so you can practise for the annual examination and find the topics you still need to revise. The questions are split over 5 pages of 50. Use the Print button to save this chapter as a PDF.